rrdtool performance tuning (fwd)

[Dmitry Morozovsky]

On Mon, 29 Oct 2007, Brooks Davis wrote:

BD> On Mon, Oct 29, 2007 at 11:13:09AM +0300, Dmitry Morozovsky wrote:
BD> > 
BD> > [hmm, after thinking a bit I decided it would be more appropriate here, in 
BD> > stable@]
BD> > 
BD> > Dear colleagues,
BD> > 
BD> > any hints to tune rrdtool with ~30k rrd files (approx 2k target devices)?
BD> > 
BD> > machine is mostly IO-bound, showing 100% disk load with 8 or sometimes even 3 
BD> > mB/s, 300-400 tps (it's 2 SATA300 disks in gmirror)
BD> 
BD> Store it on a memory file system and take periodic snapshots.  The format is
BD> hopeless for large numbers of updates.  The ganglia port's startup scripts show
BD> an example of doing this.

I thought about this, but total size of these files is already more than 
memory, and I'm not sure md would be suitable for this.

Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck at FreeBSD.org ]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
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